jquery根据日期算周次

jquery根据日期算周次

$(function() {
				function ddd(types) {
					var text = "";
					switch(types) {
						case 1:
							text = "星期一";
							break;
						case 2:
							text = "星期二";
							break;
						case 3:
							text = "星期三";
							break;
						case 4:
							text = "星期四";
							break;
						case 5:
							text = "星期五";
							break;
						case 6:
							text = "星期六";
							break;
						case 7:
							text = "星期日";
							break;
						default:
					}
					return text;
				}

				var date = "2017-7-16"; 
				var day = new Date(Date.parse(date));   
				var today = new Array('星期日', '星期一', '星期二', '星期三', '星期四', '星期五', '星期六');
				var week = today[day.getDay()];

				//最终结果为：  

				alert(week);

			})$(function() {
				function ddd